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Add flutter basics
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‎.github/workflows/flutter-basics.yml

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name: Flutter basics
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on: [push]
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env:
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flutter_version: "1.9.1+hotfix.6"
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java_version: "12.x"
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jobs:
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format:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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steps:
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- uses: actions/checkout@v1
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- uses: actions/setup-java@v1
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with:
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java-version: ${{ env.java_version }}
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- uses: subosito/flutter-action@v1
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with:
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flutter-version: ${{ env.flutter_version }}
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- name: Install dependencies
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run: |
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cd flutter-basics
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flutter pub get
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- name: Lint
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run: flutter format --dry-run . --set-exit-if-changed
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lint:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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steps:
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- uses: actions/checkout@v1
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- uses: actions/setup-java@v1
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with:
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java-version: ${{ env.java_version }}
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- uses: subosito/flutter-action@v1
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with:
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flutter-version: ${{ env.flutter_version }}
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- name: Install dependencies
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run: |
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cd flutter-basics
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flutter pub get
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- name: Lint
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run: flutter analyze
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test:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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steps:
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- uses: actions/checkout@v1
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- uses: actions/setup-java@v1
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with:
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java-version: ${{ env.java_version }}
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- uses: subosito/flutter-action@v1
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with:
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flutter-version: ${{ env.flutter_version }}
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- name: |
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cd flutter-basics
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Install dependencies
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run: flutter pub get
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- name: Test
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run: flutter test
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build:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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needs: [format, lint, test]
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steps:
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- uses: actions/checkout@v1
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- uses: actions/setup-java@v1
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with:
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java-version: ${{ env.java_version }}
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- uses: subosito/flutter-action@v1
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with:
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flutter-version: ${{ env.flutter_version }}
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- name: Install dependencies
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run: |
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cd flutter-basics
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flutter pub get
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- name: Build
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run: flutter build apk

‎README.md

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### Dart
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- [GitHub Actions Workflow with Flutter installation cache](flutter-install-cache)
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- [Flutter basics: screens, routing, tests, data input, CI](flutter-basics)

‎flutter-basics/.gitignore

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# Miscellaneous
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*.class
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*.log
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*.pyc
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*.swp
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.DS_Store
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.atom/
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.buildlog/
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.history
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.svn/
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# IntelliJ related
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*.iml
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*.ipr
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*.iws
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.idea/
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# The .vscode folder contains launch configuration and tasks you configure in
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# VS Code which you may wish to be included in version control, so this line
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# is commented out by default.
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#.vscode/
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# Flutter/Dart/Pub related
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**/doc/api/
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.dart_tool/
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.flutter-plugins
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.packages
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.pub-cache/
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.pub/
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/build/
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# Android related
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**/android/**/gradle-wrapper.jar
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**/android/.gradle
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**/android/captures/
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**/android/gradlew
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**/android/gradlew.bat
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**/android/local.properties
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**/android/**/GeneratedPluginRegistrant.java
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# iOS/XCode related
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**/ios/**/*.mode1v3
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**/ios/**/*.mode2v3
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**/ios/**/*.moved-aside
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**/ios/**/*.pbxuser
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**/ios/**/*.perspectivev3
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**/ios/**/*sync/
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**/ios/**/.sconsign.dblite
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**/ios/**/.tags*
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**/ios/**/.vagrant/
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**/ios/**/DerivedData/
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**/ios/**/Icon?
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**/ios/**/Pods/
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**/ios/**/.symlinks/
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**/ios/**/profile
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**/ios/**/xcuserdata
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**/ios/.generated/
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**/ios/Flutter/App.framework
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**/ios/Flutter/Flutter.framework
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**/ios/Flutter/Generated.xcconfig
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**/ios/Flutter/app.flx
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**/ios/Flutter/app.zip
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**/ios/Flutter/flutter_assets/
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**/ios/Flutter/flutter_export_environment.sh
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**/ios/ServiceDefinitions.json
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**/ios/Runner/GeneratedPluginRegistrant.*
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# Exceptions to above rules.
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!**/ios/**/default.mode1v3
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!**/ios/**/default.mode2v3
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!**/ios/**/default.pbxuser
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!**/ios/**/default.perspectivev3
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!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

‎flutter-basics/.metadata

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# This file tracks properties of this Flutter project.
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# Used by Flutter tool to assess capabilities and perform upgrades etc.
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#
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# This file should be version controlled and should not be manually edited.
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version:
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revision: 68587a0916366e9512a78df22c44163d041dd5f3
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channel: stable
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project_type: app

‎flutter-basics/.vscode/extension.json

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{
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"recommendations": [
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"dart-code.flutter",
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"dart-code.dart-code",
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"coenraads.bracket-pair-colorizer-2"
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]
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}

‎flutter-basics/.vscode/settings.json

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{
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"editor.formatOnSave": true,
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}

‎flutter-basics/README.md

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# Flutter basics
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Screens, routing, tests, data input, CI
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## Usage
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[Test workflow](../.github/workflows/flutter-basics.yml)
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```
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flutter pub get
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flutter format --dry-run . --set-exit-if-changed
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flutter analyze
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flutter test
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flutter build apk
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```

‎flutter-basics/android/app/build.gradle

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def localProperties = new Properties()
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def localPropertiesFile = rootProject.file('local.properties')
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if (localPropertiesFile.exists()) {
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localPropertiesFile.withReader('UTF-8') { reader ->
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localProperties.load(reader)
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}
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}
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def flutterRoot = localProperties.getProperty('flutter.sdk')
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if (flutterRoot == null) {
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throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
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}
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def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
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if (flutterVersionCode == null) {
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flutterVersionCode = '1'
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}
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def flutterVersionName = localProperties.getProperty('flutter.versionName')
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if (flutterVersionName == null) {
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flutterVersionName = '1.0'
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}
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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
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android {
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compileSdkVersion 28
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sourceSets {
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main.java.srcDirs += 'src/main/kotlin'
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}
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lintOptions {
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disable 'InvalidPackage'
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}
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defaultConfig {
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// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
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applicationId "com.example.flutter_demo"
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minSdkVersion 16
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targetSdkVersion 28
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versionCode flutterVersionCode.toInteger()
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versionName flutterVersionName
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testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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// TODO: Add your own signing config for the release build.
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// Signing with the debug keys for now, so `flutter run --release` works.
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signingConfig signingConfigs.debug
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}
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}
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}
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flutter {
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source '../..'
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}
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dependencies {
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'com.android.support.test:runner:1.0.2'
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androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
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}

‎flutter-basics/android/app/src/debug/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.example.flutter_demo">
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<!-- Flutter needs it to communicate with the running application
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to allow setting breakpoints, to provide hot reload, etc.
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-->
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>

‎flutter-basics/android/app/src/main/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.example.flutter_demo">
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<!-- io.flutter.app.FlutterApplication is an android.app.Application that
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calls FlutterMain.startInitialization(this); in its onCreate method.
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In most cases you can leave this as-is, but you if you want to provide
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additional functionality it is fine to subclass or reimplement
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FlutterApplication and put your custom class here. -->
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<application
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android:name="io.flutter.app.FlutterApplication"
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android:label="flutter_demo"
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android:icon="@mipmap/ic_launcher">
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<activity
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android:name=".MainActivity"
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android:launchMode="singleTop"
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android:theme="@style/LaunchTheme"
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android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
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android:hardwareAccelerated="true"
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android:windowSoftInputMode="adjustResize">
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<!-- This keeps the window background of the activity showing
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until Flutter renders its first frame. It can be removed if
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there is no splash screen (such as the default splash screen
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defined in @style/LaunchTheme). -->
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<meta-data
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android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
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android:value="true" />
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<intent-filter>
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<action android:name="android.intent.action.MAIN"/>
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<category android:name="android.intent.category.LAUNCHER"/>
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎flutter-basics/android/app/src/main/kotlin/com/example/flutter_demo/MainActivity.kt

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package com.example.flutter_demo
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import android.os.Bundle
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import io.flutter.app.FlutterActivity
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import io.flutter.plugins.GeneratedPluginRegistrant
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class MainActivity: FlutterActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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GeneratedPluginRegistrant.registerWith(this)
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}
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}

‎flutter-basics/android/app/src/main/res/drawable/launch_background.xml

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<?xml version="1.0" encoding="utf-8"?>
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<!-- Modify this file to customize your launch splash screen -->
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<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:drawable="@android:color/white" />
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<!-- You can insert your own image assets here -->
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<!-- <item>
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<bitmap
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android:gravity="center"
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android:src="@mipmap/launch_image" />
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</item> -->
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</layer-list>

‎flutter-basics/android/app/src/main/res/mipmap-hdpi/ic_launcher.png

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‎flutter-basics/android/app/src/main/res/mipmap-mdpi/ic_launcher.png

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‎flutter-basics/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png

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‎flutter-basics/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png

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‎flutter-basics/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png

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‎flutter-basics/android/app/src/main/res/values/styles.xml

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<?xml version="1.0" encoding="utf-8"?>
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<resources>
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<style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
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<!-- Show a splash screen on the activity. Automatically removed when
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Flutter draws its first frame -->
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<item name="android:windowBackground">@drawable/launch_background</item>
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</style>
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</resources>

‎flutter-basics/android/app/src/profile/AndroidManifest.xml

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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.example.flutter_demo">
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<!-- Flutter needs it to communicate with the running application
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to allow setting breakpoints, to provide hot reload, etc.
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-->
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<uses-permission android:name="android.permission.INTERNET"/>
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</manifest>

‎flutter-basics/android/build.gradle

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buildscript {
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ext.kotlin_version = '1.2.71'
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repositories {
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google()
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jcenter()
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}
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dependencies {
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classpath 'com.android.tools.build:gradle:3.2.1'
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classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
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}
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}
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allprojects {
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repositories {
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google()
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jcenter()
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}
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}
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rootProject.buildDir = '../build'
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subprojects {
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project.buildDir = "${rootProject.buildDir}/${project.name}"
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}
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subprojects {
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project.evaluationDependsOn(':app')
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}
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task clean(type: Delete) {
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delete rootProject.buildDir
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}

‎flutter-basics/android/gradle.properties

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org.gradle.jvmargs=-Xmx1536M
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‎flutter-basics/android/gradle/wrapper/gradle-wrapper.properties

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#Fri Jun 23 08:50:38 CEST 2017
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distributionBase=GRADLE_USER_HOME
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distributionPath=wrapper/dists
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zipStoreBase=GRADLE_USER_HOME
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zipStorePath=wrapper/dists
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distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-all.zip

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